Portable computer maintenance system



FIG. 1 is a top plan view of a portable computer maintenance system showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side elevational view thereof, the rear plate extended down;

FIG. 6 is a left side elevational view thereof, the rear plate extended down;

FIG. 7 is a top, front right side perspective view thereof, the rear plate extended down;

FIG. 8 is a top, left rear perspective view thereof, the rear plate extended down; and

FIG. 9 is a right side elevational view thereof with the computer display folded down and the rear plate swung up. 

The ornamental design for a portable computer maintenance system, as shown and described. 